| Statistic | Gretna | Nebraska | National |
| Population | 5,207 | 1,977,482 | 336,919,644 |
| Population density (sq mi) | 2,135 | 26 | 91 |
| Median age | 36.2 | 36.2 | 37.7 |
| Male/Female ratio | 0.8:1 | 1.0:1 | 1.0:1 |
| Married (15yrs & older) | 62% | 59% | 55% |
| Families w/ Kids under 18 | 50% | 45% | 43% |
| Speak English | 95% | 89% | 79% |
| Speak Spanish | 4% | 7% | 13% |

The demographics of Gretna offer invaluable insights into the composition, dynamics and needs of both urban and rural areas, empowering planners, developers and policymakers to foster prosperity, equity, and well-being for all residents. With a population of 5,207, Gretna exhibits a population density of 2,135 people per square mile, contrasting with the national average of 91. The median age stands at 36.2, with 62% of individuals aged 15 or older being married and 50% having children under 18. In terms of income equality in Gretna, 12% of households report a median income below $25,000, while 20% report an income exceeding $150,000, showcasing a diverse economic landscape.
Recognizing the racial demographics and ethnicity breakdown of Gretna is pivotal for addressing systemic inequities, championing social justice and inclusion and fostering resilient communities. In Gretna, the racial breakdown comprises 97.2% White, 0.4% Black or African American, 0.1% Asian, 0% American Indian, and 0% Native Hawaiian, with 5.3% of the population identifying as Hispanic or Latino. 94.6% of households reported speaking English only, while 4.4% reported speaking Spanish only. Furthermore, 1% of residents were categorized as foreign-born.
The Gretna population density comes in at 2,135 people per square mile, which makes it one of the most densely populated areas in the country, far surpassing the national average of 91. Areas characterized by high population density often boast an abundance of amenities and services within close proximity, providing residents with convenient access to healthcare, education, cultural attractions, dining establishments, retail outlets and transportation options. This accessibility could potentially enhance residents' overall quality of life and well-being.
Education Allocation: In education planning, Gretna demographic data can be invaluable for identifying student demographics, school enrollment trends and educational needs. This data aids schools and policymakers in resource allocation and the formulation of effective educational programs. It serves as a crucial tool for recognizing disparities in educational access and outcomes among different demographic groups, including racial and ethnic minorities, socio-economic status and students with disabilities. Through the disaggregation of data by demographic factors, education planners can pinpoint areas of inequity and implement targeted interventions to enhance access, support, and outcomes for marginalized students. Overall, Gretna demographic data can be an essential tool in education for promoting equity, facilitating student success, and nurturing inclusive learning environments that cater to the needs of all students.
Understanding Populations: Reporting and analyzing the demographic data in Gretna can allow us to gain insights into the characteristics and composition of populations, including age, gender, race, ethnicity, income, education and other socio-economic factors. This understanding is essential for addressing the diverse needs, preferences and challenges of different demographic groups within communities. Demographics can play a crucial role in understanding populations, informing decision-making processes and promoting equity, inclusion, and well-being for all individuals and communities. Gretna population data serves as a foundation for addressing social, economic, and environmental challenges and promoting the well-being and resilience of societies.
Policy Planning: Demographic data and statistics can inform policy and decision-making processes at various levels of government, as well as in organizations and businesses. By reporting and analyzing Gretna demographics data, policymakers, government officials and organizational leaders can identify areas of need, allocate resources effectively and develop targeted policies and programs that address the specific needs and priorities of different demographic groups. Gretna demographics can play a crucial role in policy planning by informing resource allocation, evidence-based decision making, identifying priorities, forecasting future trends, monitoring policy impact and promoting equity and inclusion. By leveraging this data effectively, policymakers can develop policies that are targeted, effective and responsive to the needs of diverse communities.

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| Race | Gretna | Nebraska | National |
| White | 97.22% | 88.01% | 73.35% |
| Black | 0.44% | 4.70% | 12.63% |
| Asian | 0.06% | 2.12% | 5.22% |
| American Indian | 0.00% | 0.84% | 0.82% |
| Native Hawaiian | 0.00% | 0.07% | 0.18% |
| Mixed race | 2.28% | 2.32% | 3.06% |
| Other race | 0.00% | 1.95% | 4.75% |